fuel KIA NIRO 2018 Repair Manual

Maintenance
20
8
Normal Maintenance Schedule (CONT.)
150,000 miles (240,000 km) or 120 months
❑ Inspect HSG belt *3(150,000 miles (240,000 km) or 240 months)
❑Inspect vacuum hose
❑Inspect air conditioning refrigerant
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑Inspect engine clutch actuator hose and lines
(Every 15,000 mile (24,000 km) or 12months)
❑ Inspect dual clutch transmission fluid
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace engine oil and filter
(150,000 miles (240,000 km) or 240 months)
(Continued)
(Continued)
❑Replace engine coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
❑Replace inverter coolant (First, 120,000 miles (192,000 km) or
120 months after every 30,000 miles (48,000 km) or 24 months)
❑ Add fuel additive *4 (150,000 miles (240,000 km) or 240 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
*1Fuel tank air filter are considered to be maintenance free but periodic inspec-
tion is recommended for this maintenance schedule depends on fuel quality.
*
3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

Maintenance
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EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
HSG (Hybrid starter & genera-
tor) belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Fuel filter (for gasoline)
Kia gasoline vehicle is equipped a
lifetime fuel filter that integrated with
the fuel tank. Regular maintenance
or replacement is not needed but
depends on fuel quality. If there are
some important safety matters like
fuel flow restriction, surging, loss of
power, hard starting problem etc, fuel
filter inspection or replace is needed.
The fuel filter be Inspected or
replaced by an authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-
rectly replaced.

Maintenance
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8
TIRES AND WHEELS
Tire care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
Recommended cold tire infla-
tion pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. “Cold Tires” means the
vehicle has not been driven for at
least three hours or driven less than
one mile (1.6 km).
Recommended pressures must be
maintained for the best ride, top vehi-
cle handling, and minimum tire wear.
For recommended inflation pressure
refer to “Tire and wheels” in chapter
9. All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.
WARNING - Tire underin-
flation
Inflate your tires consistent with
the instructions provided in this
manual. Severe underinflation
(10 psi (70 kPa) or more) can
lead to severe heat build-up,
causing blowouts, tread separa-
tion and other tire failures that
can result in the loss of vehicle
control. This risk is much higher
on hot days and when driving
for long periods at high speeds.
ODE086006L

849
Maintenance
Underinflation also results inexcessive wear, poor handling and
reduced fuel economy. Wheel
deformation also is possible. Keep
your tire pressures at the proper
levels. If a tire frequently needs
refilling, have it checked by an
authorized Kia dealer.
Overinflation produces a harsh ride, excessive wear at the center
of the tire tread, and a greater pos-
sibility of damage from road haz-
ards.
Warm tires normally exceed rec- ommended cold tire pressures by 4
to 6 psi (28 to 41 kPa). Do not
release air from warm tires to
adjust the pressure or the tires will
be underinflated.
Be sure to reinstall the tire inflation valve caps. Without the valve cap,
dirt or moisture could get into the
valve core and cause air leakage. If
a valve cap is missing, install a
new one as soon as possible.Tire pressure
Always observe the following:
Check tire pressure when the tiresare cold. (After vehicle has been
parked for at least three hours or
hasn't been driven more than one
mile (1.6 km) since startup.)
Check the pressure of your spare tire each time you check the pres-
sure of other tires.
Never overload your vehicle. Be careful not to overload a vehicle
luggage rack if your vehicle is
equipped with one.
Checking tire inflation pres-
sure
Check your tires once a month or
more.
Also, check the tire pressure of the
spare tire.
How to check
Use a good quality gauge to check
tire pressure. You can not tell if your
tires are properly inflated simply by
looking at them. Radial tires may
look properly inflated even when
they're underinflated.
Check the tire's inflation pressure
when the tires are cold. - "Cold"
means your vehicle has been sitting
for at least three hours or driven no
more than 1 mile (1.6 km).
WARNING - Tire Inflation
Overinflation or underinflation
can reduce tire life, adversely
affect vehicle handling, and
lead to sudden tire failure. This
could result in loss of vehicle
control and potential injury.

857
Maintenance
Temperature -A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. The grade C cor-
responds to a level of performance
which all passenger car tires must
meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher
levels of performance on the labora-
tory test wheel than the minimum
required by law.Tire terminology and defini-
tions
Air Pressure:The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
kilopascal (kPa) or pounds per
square inch (psi).
Accessory Weight: This means the
combined weight of optional acces-
sories. Some examples of optional
accessories are, dual clutch trans-
mission, power seats, and air condi-
tioning.
Aspect Ratio: The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire: A pneumatic tire in
which the plies are laid at alternate
angles less than 90 degrees to the
centerline of the tread. Cold Tire Pressure:
The amount of
air pressure in a tire, measured in
kilopascals (kPa) or pounds per
square inch (psi) before a tire has
built up heat from driving.
Curb Weight: This means the weight
of a motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil and
coolant, but without passengers and
cargo.
DOT Markings: A code molded into
the sidewall of a tire signifying that
the tire is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. The DOT
code includes the Tire Identification
Number (TIN), an alphanumeric des-
ignator which can also identify the
tire manufacturer, production plant,
brand and date of production.

Maintenance
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Fuse NameFuse ratingCircuit Protected
MODULE 210AEngine Room Junction Block (Power Outlet Relay), Wireless Charger, BCM (Body Control Module), USB
Charger, Smart Key Control Module, Audio, BMS (Battery Management System) Control Module,
Audio/Video & Navigation Head Unit, Driver Power Outside Mirror Switch, AMP (Amplifier)
PDM 37.5A[Without Smart Key] Immobilizer Module
[With Smart Key] Smart Key Control Module
MEMORY 110AInstrument Cluster, Driver IMS (Integrated memory system) Module, BCM (Body Control Module), Air
Conditioner Control Module, Auto Light & Photo Sensor, Driver Door Module, Passenger Door Module, ICM
Relay Box (Outside Mirror Folding/Unfolding Relay), Wireless Charger
MULTI MEDIA15AAudio, Audio/Video & Navigation Head Unit
EEWP10AElectric Water Pump (HEV)
MDPS7.5AMDPS (Motor Driven Power Steering) Unit
TAIL GATE10ATail Gate Relay, ICM Relay Box (Fuel Filler Door Relay), Fuel Filler Switch
PDM 115ASmart Key Control Module
MODULE 77.5AFront Seat Warmer Control Module, AC Inverter (220V), Front Air Ventilation Seat Control Module, Rear
Seat Warmer Module, AC Inverter Module
WIPER (REAR)15AEngine Room Junction Block (Wiper RR Relay), Rear Wiper Motor
HEATED
STEERING15ABCM (Body Control Module)
SUNROOF20ASunroof Motor

875
Maintenance
Instrument panel (Driver’s side fuse panel) (Plug-in Hybrid)
Fuse NameFuse ratingCircuit Protected
MODULE 510A
Electro Chromic Mirror, Audio/Video & Navigation Head Unit, Audio, Driver IMS (Integrated memory system)
Module, VESS (Virtual Engine Sound System) Unit, Shift Lever Indicator, Air Conditioner Control Module,
Rear Seat Warmer Control Module, Front Air Ventilation Seat Control Module, Front Seat Warmer Control
Module
MODULE 410ALane Keeping Assist Control Module, Crash Pad Switch, AEB Module, Blind Spot Detection Radar Left
Handle side/Right Handle side
INTERIORLAMP10AFront Vanity Lamp LH/RH, Room Lamp, Overhead Console Lamp, Ignition Key ILL. & Door Warning Switch,
Luggage Lamp, Wireless Charger
A/BAG15ASRS (Supplemental Restraint System) Control Module, Passenger Occupant Detection Sensor
IG 125AEngine Room Junction Block (Fuse - DCT4, HPCU2, ACTIVE HYDRAULIC BOOSTER3)
CLUSTER10AInstrument Cluster
MODULE 310ABCM (Body Control Module), DCT (Dual Clutch Transmission) Shift Lever, Stop Lamp Switch, Driver Door
Module, Passenger Door Module
IG3 210AFuel Filler Door & Battery Charger Switch, Instument Cluster, Audio, Charger Indicator, Integrated Gateway
Power control Module, Audio/Video & Navigation Head Unit
MEMORY 27.5AActive Air Flap Unit
MODULE 810AActive Air Flap Unit, Electric Water Pump (Engine)
A/BAG IND7.5AAir Conditioner Control Module, Instrument Cluster

Maintenance
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Fuse NameFuse ratingCircuit Protected
START7.5ATransaxle Range Switch
MODULE 210AEngine Room Junction Block (Power Outlet Relay), Wireless Charger, BCM (Body Control Module), USB
Charger, Smart Key Control Module, Audio, Audio / Video & Navigation Head Unit, Power Outside Mirror
Switch, AMP (Amplifier)
PDM37.5AImmobilizer Module, Smart Key Control Module
MEMORY 110AInstrument Cluster, Driver IMS (Integrated memory system) Module, BCM (Body Control Module), Air
Conditioner Control Module, Auto Light & Photo Sensor, Driver Door Module, Passenger Door Module, ICM
Relay Box (Outside Mirror Folding/Unfolding Relay)
MULTI MEDIA15AAudio, Audio / Video & Navigation Head Unit
IG3 410AOBC (On-Board Charger) Unit, TCM (Transmission Control Module), ECM (Engine Control Module), HPCU
(Hybrid Power Control Unit)
IG3 310AElectric Water Pump (PHEV)
IG3 515ATransaxle Range Switch, BMS (Battery Management System) Control Module, Engine Room Junction Block
(Battery C/Fan Relay)
IG3 120AICM Relay Box (IG3 #1, IG3 #2, IG3 #3 Relay)
MDPS7.5AMDPS (Motor Driven Power Steering) Unit
TAIL GATE
OPEN10ATail Gate Relay, ICM Relay Box (Fuel Filler Door Relay, Charger Connector Lock/Unlock Relay), Fuel Filler
& Battery Charger Switch, Charge Connector Lamp
PDM 115ASmart Key Control Module

881
Maintenance
Fuse NameFuse ratingCircuit Protected
FUSE
POWER
OUTLET 320APower Outlet #2
POWER
OUTLET 220APower Outlet #1
DCT 315ATCM (Transmission Control Module)
HPCU 110AHPCU (Hybrid Power Control Unit)
EWP10AElectric Water Pump (Engine)
FUEL PUMP20AFuel Pump Relay
B + 140AInstrument Panel Junction Block (Fuse - BRAKE SWITCH, PDM1, PDM2, MODULE1, DOOR
LOCK, Leak Current Autocut Device)
DCT 240ATCM (Transmission Control Module)
DCT 140ATCM (Transmission Control Module)
WIPER RR15AWiper RR Relay
H/LAMP HI10AH/Lamp HI Relay
ACTIVE
HYDRAULIC BOOTER 140AIntegrated Brake Actuation Unit, Multipurpose Check Connector

Maintenance
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Fuse NameFuse ratingCircuit Protected
FUSE
ACTIVE
HYDRAULIC BOOTER 230AIntegrated Brake Actuation Unit
INVERTER30AAC Inverter Module
POWER
OUTLET 140APower Outlet Relay
B/UP LAMP10AElectro Chromic Mirror, Back-Up Lamp LH/RH
ECU 310AECM (Engine Control Module)
HPCU 215AHPCU (Hybrid Power Control Unit), Clutch Actuator (HEV)
ACTIVE
HYDRAULIC BOOTER 310AIntegrated Brake Actuation Unit, Multipurpose Check Connector
DCT 415ADCT (Dual clutch transmission) Shift Lever, TCM (Transmission Control Module), Inhibitor
Switch
SENSOR 310AFuel Pump Relay, Oil Control Valve #1/#2 (Intake/Exhaust), Camshaft Position Sensor #1/#2
(Intake/Exhaust)
BATTERY C/FAN15ABattery C/Fan Relay
HORN20AHorn Relay
SENSOR 210APurge Control Solenoid Valve, Cooling Fan Relay, Canister Close Valve, Mass Air Flow Sensor
ECU 120AECM (Engine Control Module)